Home / 14,920.59-20,588.13-8,631.75

Finding the Fourth Proportional to 14,920.59, 20,588.13 and 8,631.75

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Solution

The fourth proportional to 14,920.59, 20,588.13 and 8,631.75 is: 11,910.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.59 : 20,588.13 = 8,631.75 : x
  2. Step 2: Convert to fraction form
    14,920.59/20,588.13 = 8,631.75/x
  3. Step 3: Cross multiply
    14,920.59x = 20,588.13 × 8,631.75
  4. Step 4: Simplify right side
    14,920.59x = 177,711,591.13
  5. Step 5: Solve for x
    x = 177,711,591.13/14,920.59
  6. Step 6: Final answer
    x = 11,910.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.